How to beat Dark Moon Dota 2: Everything you need to know

Dark Moon is a special event currently available for Valve's Dota 2. It began Thursday and runs through Feb. 6.

The focus of the event is a special game mode that tasks you with defending Selemene's temple from waves of invaders. You work as a group of five players and face off against increasingly difficult enemies, including boss battles and special units with unique abilities. If you can make it through all 15 rounds and kill the final boss, you win.

Sounds simple enough, but there's a bit more to it than that. For example, you're limited to a handful of heroes — some of whom get altered abilities specifically for the Dark Moon event — which means you could be stuck using an unfamiliar character. Here are the ones you can use, according to the Dota 2 Wiki.